53156656 has 40 divisors (see below), whose sum is σ = 118635264. Its totient is φ = 22601280.

The previous prime is 53156641. The next prime is 53156659. The reversal of 53156656 is 65665135.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (53156659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12861 + ... + 16483.

Almost surely, 2^53156656 is an apocalyptic number.

53156656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53156656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59317632).

53156656 is an abundant number, since it is smaller than the sum of its proper divisors (65478608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53156656 is a wasteful number, since it uses less digits than its factorization.

53156656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3769 (or 3763 counting only the distinct ones).

The product of its digits is 81000, while the sum is 37.

The square root of 53156656 is about 7290.8611288379. The cubic root of 53156656 is about 375.9983023916.

The spelling of 53156656 in words is "fifty-three million, one hundred fifty-six thousand, six hundred fifty-six".